5131551642 has 64 divisors (see below), whose sum is σ = 11866963968. Its totient is φ = 1449000000.

The previous prime is 5131551631. The next prime is 5131551647. The reversal of 5131551642 is 2461551315.

It is not an unprimeable number, because it can be changed into a prime (5131551647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4457767 + ... + 4458917.

It is an arithmetic number, because the mean of its divisors is an integer number (185421312).

Almost surely, 2^5131551642 is an apocalyptic number.

5131551642 is an abundant number, since it is smaller than the sum of its proper divisors (6735412326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5131551642 is a wasteful number, since it uses less digits than its factorization.

5131551642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315.

The product of its digits is 18000, while the sum is 33.

The square root of 5131551642 is about 71634.8493542075. The cubic root of 5131551642 is about 1724.8429897841.

The spelling of 5131551642 in words is "five billion, one hundred thirty-one million, five hundred fifty-one thousand, six hundred forty-two".